Steve: By standard ignition I am going to assume you mean points, not electronic........if so, good. Much easier IMO to troubleshoot.

If that is the case, pull your distributor cap and rotor. What you want to determine is if the points are getting juice. If you have one of those handy $ 5 circuit testers that look like an icepick with a wire and alligator clip coming out of the handle, hook the alligator clip to a solid ground, like a bracket on the engine. Now, put the points on the cam lobe so they are open. Turn on the key and check again for voltage at the + side of the coil. If you have current there, move into the distributor for the next step.

Take your probe and touch it to the wire that is attached to your points. If the points are open you should have current. You can also test for current by closing the points, and with the key on use a small flat screwdriver to open and close the points. You should see a spark when you do that.

If you are getting no spark, disconnect the wire on the - side of the coil (the one that goes into the distributor) and try now to see if there is current at that neg post. If the coil is good you should have 12 volts there.

If I assumed wrong and you have electronic ignition, forget all of that, and let us know. I think you have either a bad condensor or the points are not doing their job because they are stuck or too wide or corroded. Everything inside the distributor has to be clean and adjusted right to work.

Report back on what you get when you try all of this and we'll go from there.

Don